70.233 BF1912 - August Thorn - Geometridae - Ennomos quercinaria

70.233 BF1912 - Geometridae - Larentiinae - Ennomos quercinaria - August Thorn

Adult Macro: CAT 2 - Can be confused with other species -

- click for Adult Macro Verification Guidelines

- Rare / Uncommon / Scarce

Taxonomy: Macro >> Geometridae

ID Difficulty: green

- easy to identify, generally distinctive and unlikely to be confused with other species.

ID pointers: One of a few “Thorns” that are very similar. The August Thorn can be distinguished by the shape of the cross-lines on the forewing. The inner line is noticeably curved, and the outer-line has a “kink” in it where it meets the leading edge.

Distribution: (Last record: August 2024 ) - A resident that is locally distributed and very scarce in Derbyshire. Easily confused with September Thorn. Very few records each year. There are currently 9 reported records between 2018 and the end of July 2024.

Flight Period: August / September / - August – September

Moth Activity: Nocturnal - and is attracted to light

Wingspan: 42-50mm
Forewing: 18-22mm

Food Plant: Pedunculate Oak and Sessile Oak.

Last Recorded Year: August 2024

Last Recorded By: Not Recorded

Last Recorded General Area: Not Recorded

No First Date Information Recorded

IMAGES BELOW: 10th August 2020 – Allestree, Derby – Image by Stephen Plant ©; 14th July 2024 – Chaddesden, Derby – Image by Martin Roome ©